It's the very definition of a culture war and in addition sadly evidence of limited intelligence. Even the most red blooded oil man wouldn't do this because this data is also useful for petroleum drilling and logistics - it's a whole other kind of person driving this.

Reactionary politics, greed, stupidity. Pick any three.

The government knows it's real, these are generally well-educated people who went to decent schools. But, I would challenge that most right-wing voters know whether it is real. Where I live in rural America the vast majority are pro-fossil fuel, anti-EV. EVs are seen as "gay" or "feminine" by the folks out here. So the choice to use fossil fuels might just be some performative machismo, allowing their pick-ups to output black smoke, make a loud noise and look "tough."

Those are the majority of the Republican voters at this stage. To make them happy you do things like spend millions to tear up infrastructure which challenges their worldview. This should result in increased votes for the current administration at the mid-terms. So even if climate change is a real and current threat, you need to say it isn't to get re-elected.

Which part of trump making billions of dollars from oil oligarchs is the confusing bit? His incentive structure is clear.

Tribalism.

Many deep-right voters do not believe in climate change. They're a big part of Trump's base.

It all makes sense when you realize QAnon basically runs the white house now. There’s a very insulated type of American who lives in their own world, that unfortunately lots of voters are apparently sympathetic to. It’s probably seen as a victory against the climate change hoax or something along those lines.